KELLYTM MOUTHPIECE SPECIFICATIONS (INCHES)
INSTRUMENT	CUP SPECIFICATION	CUP DIAMETER	CUP DEPTH	INSIDE DIAMETER OF RECEIVER
Trumpet	1C	.681	.62	.432
	1-1/2C	.669	.59	.432
	3C	.665	.55	.432
	5C	.659	.53	.432
	7C	.651	.49	.432
Cornet	3C	.665	.55	.385
	5C	.659	.53	.385
	7C	.651	.49	.385
	4B	.648	.58	.385
Mellophone	6V	.634	.69	.432
French Horn	MC	.664	1.02	.325
	MDC	.636	1.21	.325
Trombone / Baritone (Small-Shank)	12C	.960	.99	.475
	6-1/2 AL	.998	1.14	.475
	51D	1.005	1.37	.475
Euphonium (European-Shank)	5G	1.010	1.30	.510
	51D	1.005	1.37	.510
Trombone / Euphonium (Large-Shank)	5G	1.010	1.30	.546
	1-1/2G	1.079	1.34	.546
	51D	1.005	1.37	.546
Tuba	KELLYbergTM	1.299	1.73	.575
	18	1.285	1.71	.575
	24AW	1.231	1.65	.575
	25	1.212	1.62	.575
	Arnold Jacobs Std.	1.250	1.73	.575
	Arnold Jacobs Solo	1.271	2.01	.575